Ecological efficiency evaluation and attribution analysis of urban agglomerations in the Yellow River Basin
The urban agglomerations in the Yellow River Basin play a crucial role in preserving the environ-ment and fostering high-quality development in this area.Improving the eco-efficiency of these urban agglom-erations has the potential to boost their green economic growth.We approached this from the perspective of ur-ban agglomerations and used the super-SBM model to assess the ecological efficiency of 60 cities across seven urban agglomerations in the Yellow River Basin from 2006 to 2020.Afterward,we analyzed regional differ-ences using the Dagum Gini index and identified the key factors affecting the ecological efficiency of urban ag-glomerations through the panel quantile model.The results are as follows:① Eco-efficiency has significantly improved throughout the Yellow River Basin,including all urban agglomerations.The Hu-bao-Eyu urban ag-glomeration and the Ningxia urban agglomeration along the Yellow River exhibited the highest eco-efficiency levels,while the Central Plains urban agglomeration and the Lanxi urban agglomeration showed the lowest eco-efficiency levels.② The spatial distribution of eco-efficiency in the Yellow River Basin has shifted from a"clustered distribution in low-value areas,discrete distribution in high-value areas"to a"cross-distribution pattern with small clusters and large dispersion of high-value areas and low-value areas".③ Overall dispari-ties among the seven major urban agglomerations have decreased.The primary contributors to these differences are disparities between groups and Hypervariable density.④ Industrial structure,population density,and openness levels constrain the ecological efficiency of urban agglomerations.In contrast,economic development levels and technological progress are positively correlated with ecological efficiency.
ecological efficiencysuper-SBM modelDagum Gini indexpanel quantile regressionYellow River Basin
NETL
NSTL
万方数据
